#!/usr/bin/env bash
#ddev-generated
set -euo pipefail

# All Claude Code state is stored under .ddev/claude-code so it survives
# container rebuilds without being committed to the project repository.
PERSIST_BASE="${DDEV_APPROOT}/.ddev/claude-code"
PERSIST_HOME="${PERSIST_BASE}/home"            # replaces $HOME inside the container
PERSIST_CONFIG_HOME="${PERSIST_BASE}/config"   # XDG_CONFIG_HOME (e.g. ~/.config)
PERSIST_DATA_HOME="${PERSIST_BASE}/data"       # XDG_DATA_HOME   (e.g. ~/.local/share)
PERSIST_STATE_HOME="${PERSIST_BASE}/state"     # XDG_STATE_HOME  (e.g. ~/.local/state)
PERSIST_BIN_DIR="${PERSIST_HOME}/.local/bin"   # Claude native installer target
PERSIST_BIN="${PERSIST_BIN_DIR}/claude"        # full path to the claude executable
PERSIST_GITIGNORE_GLOBAL="${PERSIST_HOME}/.gitignore_global"  # mirrors $HOME/.gitignore_global

# Capture the container's original HOME before we override it below, so we can
# seed the persisted gitignore from the container image on first run.
CONTAINER_HOME="${HOME:?HOME must be set}"
CONTAINER_GITIGNORE_GLOBAL="${CONTAINER_HOME}/.gitignore_global"

# Ensure all persistence directories exist.
mkdir -p \
  "${PERSIST_HOME}" \
  "${PERSIST_CONFIG_HOME}" \
  "${PERSIST_DATA_HOME}" \
  "${PERSIST_STATE_HOME}" \
  "${PERSIST_BIN_DIR}"

# Seed the persisted gitignore from the container image on first run only.
if [ -f "${CONTAINER_GITIGNORE_GLOBAL}" ] && [ ! -f "${PERSIST_GITIGNORE_GLOBAL}" ]; then
  cp -f "${CONTAINER_GITIGNORE_GLOBAL}" "${PERSIST_GITIGNORE_GLOBAL}"
fi

# Claude Code's native installer stores its launcher, auth, settings, downloads,
# and versioned package data relative to HOME/XDG paths.
export HOME="${PERSIST_HOME}"
export XDG_CONFIG_HOME="${PERSIST_CONFIG_HOME}"
export XDG_DATA_HOME="${PERSIST_DATA_HOME}"
export XDG_STATE_HOME="${PERSIST_STATE_HOME}"
export PATH="${PERSIST_BIN_DIR}:${PATH}"

# If a persisted binary exists but fails to run (e.g. wrong architecture after
# a host OS change), remove it so the install step below fetches a fresh copy.
if [ -x "${PERSIST_BIN}" ] && ! "${PERSIST_BIN}" --version >/dev/null 2>&1; then
  echo "Persisted Claude Code binary is not runnable, reinstalling ..."
  rm -f "${PERSIST_BIN}"
fi

# Download and install the current stable Claude Code native build only when
# missing. Use "ddev claude update" to check for and install newer versions.
if [ ! -x "${PERSIST_BIN}" ]; then
  echo "Installing Claude Code CLI ..."
  curl -fsSL https://claude.ai/install.sh | bash -s stable
fi

# Verify the binary is present and runnable after installation.
if [ ! -x "${PERSIST_BIN}" ]; then
  echo "Claude Code installation completed but no executable was found at ${PERSIST_BIN}." >&2
  exit 1
fi

if ! "${PERSIST_BIN}" --version >/dev/null 2>&1; then
  echo "Claude Code installation completed but ${PERSIST_BIN} is not runnable." >&2
  exit 1
fi

# Point git's global excludes file at the persisted copy when available,
# so git inside the container respects user-defined ignore patterns.
if command -v git >/dev/null 2>&1 && [ -f "${PERSIST_GITIGNORE_GLOBAL}" ]; then
  CURRENT_EXCLUDESFILE="$(git config --global --get core.excludesfile || true)"
  if [ "${CURRENT_EXCLUDESFILE}" != "${PERSIST_GITIGNORE_GLOBAL}" ]; then
    git config --global core.excludesfile "${PERSIST_GITIGNORE_GLOBAL}"
  fi
fi

echo "Claude Code version: $("${PERSIST_BIN}" --version)"